How to Calculate Quickly by Henry Sticker

How to Calculate Quickly

By Henry Sticker

  • Release Date: 2013-04-15
  • Genre: Mathematics
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Description

Many useful procedures explained and taught: 2-column addition, left-to-right subtraction, direct multiplication by numbers greater than 12, mental division of large numbers, more. Also numerous helpful shortcuts. More than 8,000 problems, with solutions. 1945 edition.

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